The final battle with Unicron forced Optimus Prime to part with the Matrix of Leadership and as a side effect, he lost all his memories that occurred after gaining it. Now Optimus simply knows himself as Orion Pax, and only knows Megatron as his friend and brother from the time prior to the great war, and more so, has been convinced the Autobots are his enemies and has joined the ranks of the Decepticons.

Whoa. I seriously could have not predicted this plot twist.

So what are your thoughts on this plot twist? Predictions on how long it will play out?